From ‘pulse’-labelling experiments of Entodinium caudatum with [14C]ethanolamine and by incubating the organism with [32P]phosphatidylethanolamine it is concluded that phosphatidylethanolamine can act as a direct precursor of the phosphorylethanolamine moiety of ceramide phosphorylethanolamine. The phosphorylethanolamine is probably never liberated in the free form but is transferred directly to a ceramide or ceramide-containing acceptor. The results are also in agreement with previous conclusions that phosphatidylethanolamine is the direct lipid precursor of N-(1-carboxyethyl)phosphatidylethanolamine.
Formation of ceramide phosphorylethanolamine from phosphatidylethanolamine in the rumen protozoon Entodinium caudatum (Short Communication)
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Tom E. Broad, Rex M. C. Dawson; Formation of ceramide phosphorylethanolamine from phosphatidylethanolamine in the rumen protozoon Entodinium caudatum (Short Communication). Biochem J 1 June 1973; 134 (2): 659–662. doi: https://doi.org/10.1042/bj1340659
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